256129664

素因数分解:

$2^7\times 7^2\times {\mathrm{97}}^1\times {\mathrm{421}}^1$

素因数の和:546

約数の個数: 96

約数和(自身を含む): 601109460

約数和(自身を除く): 344979796

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 97, 98, 112, 128, 194, 196, 224, 388, 392, 421, 448, 679, 776, 784, 842, 896, 1358, 1552, 1568, 1684, 2716, 2947, 3104, 3136, 3368, 4753, 5432, 5894, 6208, 6272, 6736, 9506, 10864, 11788, 12416, 13472, 19012, 20629, 21728, 23576, 26944, 38024, 40837, 41258, 43456, 47152, 53888, 76048, 81674, 82516, 86912, 94304, 152096, 163348, 165032, 188608, 285859, 304192, 326696, 330064, 377216, 571718, 608384, 653392, 660128, 1143436, 1306784, 1320256, 2001013, 2286872, 2613568, 2640512, 4002026, 4573744, 5227136, 8004052, 9147488, 16008104, 18294976, 32016208, 36589952, 64032416, 128064832, 256129664]

約数ペア:

[(1, 256129664), (2, 128064832), (4, 64032416), (7, 36589952), (8, 32016208), (14, 18294976), (16, 16008104), (28, 9147488), (32, 8004052), (49, 5227136), (56, 4573744), (64, 4002026), (97, 2640512), (98, 2613568), (112, 2286872), (128, 2001013), (194, 1320256), (196, 1306784), (224, 1143436), (388, 660128), (392, 653392), (421, 608384), (448, 571718), (679, 377216), (776, 330064), (784, 326696), (842, 304192), (896, 285859), (1358, 188608), (1552, 165032), (1568, 163348), (1684, 152096), (2716, 94304), (2947, 86912), (3104, 82516), (3136, 81674), (3368, 76048), (4753, 53888), (5432, 47152), (5894, 43456), (6208, 41258), (6272, 40837), (6736, 38024), (9506, 26944), (10864, 23576), (11788, 21728), (12416, 20629), (13472, 19012)]